Home / 4,979,978.40-6,872,279.76-2,804,512.80

Finding the Fourth Proportional to 4,979,978.40, 6,872,279.76 and 2,804,512.80

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Solution

The fourth proportional to 4,979,978.40, 6,872,279.76 and 2,804,512.80 is: 3,870,176.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979,978.40 : 6,872,279.76 = 2,804,512.80 : x
  2. Step 2: Convert to fraction form
    4,979,978.40/6,872,279.76 = 2,804,512.80/x
  3. Step 3: Cross multiply
    4,979,978.40x = 6,872,279.76 × 2,804,512.80
  4. Step 4: Simplify right side
    4,979,978.40x = 19,273,396,552,100.93
  5. Step 5: Solve for x
    x = 19,273,396,552,100.93/4,979,978.40
  6. Step 6: Final answer
    x = 3,870,176.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.